CN105568214A - Zinc impregnation processing method for cable support hanger and cable support hanger - Google Patents
Zinc impregnation processing method for cable support hanger and cable support hanger Download PDFInfo
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- CN105568214A CN105568214A CN201511000440.8A CN201511000440A CN105568214A CN 105568214 A CN105568214 A CN 105568214A CN 201511000440 A CN201511000440 A CN 201511000440A CN 105568214 A CN105568214 A CN 105568214A
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- cable suspension
- support
- zincizing
- zinc
- cable support
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/34—Embedding in a powder mixture, i.e. pack cementation
- C23C10/36—Embedding in a powder mixture, i.e. pack cementation only one element being diffused
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/02—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/60—After-treatment
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention provides a zinc impregnation processing method for a cable support hanger and the cable support hanger and belongs to the technical field of cable support hanger surface treatment. According to the method, the cable support hanger is firstly subjected to surface treatment, and the surface treatment comprises the steps of degreasing, rust removing, washing and drying; then the cable support hanger is placed into a zinc impregnation processing container containing a zinc impregnation agent for zinc impregnation processing, and the cable support hanger subjected to the zinc impregnation processing is subjected to cooling treatment; and finally, the cable support hanger is subjected to chemical polishing with 15% nitric acid, and silicon metal powder is added during the zinc impregnation processing. The method is short in processing time, and the crevice corrosion resistance of the treated cable support hanger is higher.
Description
Technical field
The present invention relates to cable suspension and support technical field of surface, refer to a kind of zinc impregnation processing method and cable suspension and support of cable suspension and support especially.
Background technology
Cable suspension and support is commonly used in cable tunnel and cable trench, and the cable suspension and support material extensively adopted at present has two kinds: iron and steel material quality and glass steel material.Glass steel material is more crisp and intensity exists certain limitation, so the reliability of iron and steel material quality cable suspension and support is significantly better than glass steel material.Cable suspension and support usually in subway, tunnel, chemical enterprise or coastal cities etc. corrodibility rugged environment be on active service, ferrous materials very easily corrodes in these environment, particularly there is serious crevice corrosion at cable and cable suspension and support contact position, and then affect the work-ing life of cable suspension and support, therefore need to carry out rotproofing to cable suspension and support surface.
Be coated with organic coating at present or implement the major way that Hot Galvanizing Technology is the process of cable suspension and support surface anticorrosion.Organic coating technology stops the transmittance process of corrosion factor to delay corrosion by physical shielding effect, and Hot Galvanizing Technology is then utilize metallic zinc to corrode the galvanic protection retards of cable suspension and support.But the actual Service Environment of cable suspension and support has a lot of singularity, such as: when organic coating is on active service in the tunnel that humidity is higher, aqueous vapor very easily penetrates into coat inside and causes matrix iron and steel to corrode; Pot galvanize coating lost efficacy very soon at marine industry environment; In cable suspension and support installation process, because phenomenon of colliding with is inevitable, easily cause local corrosion.Therefore, organic coating and Hot Galvanizing Technology easily lose protective effect in above-mentioned severe environment.
Patent of invention 200510013167.2 proposes a kind of nanometer composite powder zinc impregnation processing method, hardware and zincizing agent are filled in zincizing tank by this patent, then heat temperature raising in Sherardizing furnace is placed on, heat temperature raising time controling was at 2 ~ 2.5 hours, when top temperature is 300-420 DEG C, keep homo(io)thermism 50-120 minute, through this method processing workpiece zinc coat thickness at 10 ~ 110 μm.Owing to unavoidably there is gap between cable and cable suspension and support, so crevice corrosion odds is very high, and in the cable suspension and support zinc coat of existing method processing, the content of zinc is about 60%, limited in one's ability to slowing down crevice corrosion.On the other hand, by this kind of mode process cable suspension and support, zinc coat thickness must be over the enough solidity to corrosions of 60 μm of guarantees, for meeting zinc coat thickness requirement, need consuming time more than 5 hours from being warmed up to the whole treating processes of cooling, top temperature needs more than 400 DEG C, in actual production, the cable suspension and support quantity of customer requirement processing is often large especially, and the Lead Time required is very short, existing working method time consumption and energy consumption, is difficult to on-schedule delivery.
Therefore, inventing the zincizing treatment process that a kind of slit and corrosion resistant ability is stronger, the processing treatment time is shorter is on active service safely very important for guarantee cable suspension and support.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of zinc impregnation processing method and cable suspension and support of cable suspension and support.
The method comprises the steps:
(1) cable suspension and support surface treatment: carry out oil removing, rust cleaning, washing and drying treatment to pending cable suspension and support surface, only has the cable suspension and support of slight corrosion directly to carry out sandblasting or shot peening for surface;
(2) zincizing process: surface treated cable suspension and support is placed in the zincizing processing vessel loading zincizing agent, zincizing processing vessel is placed in process furnace, held for some time at a certain temperature, makes the zinc in zincizing agent be diffused into cable suspension and support surface and is formed containing zinc-iron alloy layer; Wherein, zincizing agent is that quartz sand is formulated by the zinc powder of weight ratio 30-40%, the metallic silicon power of zinc powder weight 2-10%, the activator of zincizing agent weight 0.3 ~ 0.5% and surplus;
(3) cooling process is carried out to the cable suspension and support after zincizing process: after zincizing process completes, zincizing processing vessel is cooled to less than 100 DEG C with process furnace, zincizing processing vessel is taken out from process furnace, continues air cooling to room temperature, cable suspension and support is separated from zincizing agent;
(4) aftertreatment of cable suspension and support: adopt the nitric acid of 15% to carry out chemical rightenning 10 ~ 25 seconds, with water, acid is cleaned up immediately after polishing, so that the black oxide on removing member surface or remaining Zn powder; Passivation Treatment is carried out with chromic acid or chromatedsolution, also can coated surface organic coating according to customer demand, to improve infiltration layer corrosion resistance or decorative surface.
Wherein, in step (2), the volume summation of cable suspension and support and zincizing agent is no more than 95% of zincizing processing vessel volume, activator is ammonium chloride, zinc powder particle size is 200-300 order, and metallic silicon power granularity is 120-200 order, and quartz sand size is 40-100 order, process furnace heat-up rate controls at per minute 6-8 DEG C, when temperature reaches 300-380 DEG C, keep homo(io)thermism 1.5-2.0 hour, then stop heating; Wherein heat up and in insulating process, adopt the rotating speed of 5-20 rev/min to rotate zincizing processing vessel, so that the cable suspension and support in zincizing processing vessel is heated evenly, increasing the probability of collision of zincizing agent and cable suspension and support simultaneously.
A kind of cable suspension and support adopts aforesaid method to process.
The beneficial effect of technique scheme of the present invention is as follows:
1, with the addition of silicon metal powder in the penetration enhancer that the present invention adopts, add the last zincizing technique of metallic silicon power compared with traditional technology, in zinc coat, zinc content has brought up to about 75%, can significantly improve the slit and corrosion resistant ability of cable suspension and support, can also shorten the zincizing time simultaneously.Existing research thinks that the effect of silica flour penetrates in steel, the carbon in steel can be pressed to center by surface, thus expands the diffusion admittance of zinc atom and improve rate of diffusion.
2, experiment proves, through the cable suspension and support of zincizing processing treatment of the present invention, after actual environment is on active service 2 years, does not occur obvious corrosion between the gap of cable and cable suspension and support; And under identical Service Environment, through having there is a small amount of red rust point between the cable suspension and support and cable gap of prior art processing treatment.Therefore, the present invention considerably increases slit and corrosion resistant compared to existing technology.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with specific embodiment.
The invention provides a kind of zinc impregnation processing method and cable suspension and support of cable suspension and support.
Embodiment 1
The cable suspension and support of a kind of zincizing processing treatment of the present invention, adopts following steps process.
(1) cable suspension and support surface treatment: carry out oil removing, rust cleaning, washing and drying treatment to pending cable suspension and support surface, only has the cable suspension and support of slight corrosion also directly can carry out sandblasting or shot peening for surface.
(2) cable suspension and support Zinized surface process: surface treated cable suspension and support and zincizing agent are loaded zincizing processing vessel, is then placed in process furnace.Wherein zincizing agent is that quartz sand (60 order) is formulated by the ammonium chloride of the zinc powder (200 order) of weight ratio 30%, the metallic silicon power (150 order) of 2% of zinc powder weight, 0.3% of zincizing agent weight and surplus.Be placed in process furnace by the zincizing processing vessel that cable suspension and support and zincizing agent are housed and heat up, heat-up rate controls at about per minute 6 DEG C, when temperature reaches 350 DEG C, keeps homo(io)thermism 1.8 hours, then stops heating.
(3) cooling process is carried out to the cable suspension and support after zincizing process: after heat diffusion treatment completes, less than 100 DEG C are cooled to process furnace Deng zincizing processing vessel, zincizing processing vessel is taken out from described process furnace, continue air cooling to room temperature, cable suspension and support is separated from zincizing agent.
(4) cable suspension and support aftertreatment: adopt the nitric acid of 15% to carry out chemical rightenning 15 seconds, so that the black oxide on removing member surface or remaining Zn powder, with water, acid is cleaned up immediately after polishing.
Experiment proves, the thickness of the cable suspension and support zincizing coating that the present embodiment obtains is 65 microns, zinc content average out to 72% in zinc coat.
Embodiment 2
The cable suspension and support of a kind of zincizing processing treatment of the present invention, adopts following steps process.
(1) cable suspension and support surface treatment: carry out oil removing, rust cleaning, washing and drying treatment to pending cable suspension and support surface, only has the cable suspension and support of slight corrosion also directly can carry out sandblasting or shot peening for surface.
(2) cable suspension and support Zinized surface process: surface treated cable suspension and support and zincizing agent are loaded zincizing processing vessel, is then placed in process furnace.Wherein zincizing agent is that quartz sand (60 order) is formulated by the ammonium chloride of the zinc powder (250 order) of weight ratio 35%, the metallic silicon power (150 order) of 5% of zinc powder weight, 0.4% of zincizing agent weight and surplus.Be placed in process furnace by the zincizing processing vessel that cable suspension and support and zincizing agent are housed and heat up, heat-up rate controls at about per minute 8 DEG C, when temperature reaches 340 DEG C, keeps homo(io)thermism 2.0 hours, then stops heating.
(3) cooling process is carried out to the cable suspension and support after zincizing process: after heat diffusion treatment completes, less than 100 DEG C are cooled to process furnace Deng zincizing processing vessel, zincizing processing vessel is taken out from described process furnace, continue air cooling to room temperature, cable suspension and support is separated from zincizing agent.
(4) cable suspension and support aftertreatment: adopt the nitric acid of 15% to carry out chemical rightenning 18 seconds, so that the black oxide on removing member surface or remaining Zn powder, with water, acid is cleaned up immediately after polishing.
Experiment proves, the thickness of the cable suspension and support zincizing coating that the present embodiment obtains is 70 microns, zinc content average out to 72% in zinc coat.
Embodiment 3
The cable suspension and support of a kind of zincizing processing treatment of the present invention, adopts following steps process.
(1) cable suspension and support surface treatment: carry out oil removing, rust cleaning, washing and drying treatment to pending cable suspension and support surface, only has the cable suspension and support of slight corrosion also directly can carry out sandblasting or shot peening for surface.
(2) cable suspension and support Zinized surface process: surface treated cable suspension and support and zincizing agent are loaded zincizing processing vessel, is then placed in process furnace.Wherein zincizing agent is that quartz sand (100 order) is formulated by the ammonium chloride of the zinc powder (300 order) of weight ratio 40%, the metallic silicon power (150 order) of 8% of zinc powder weight, 0.5% of zincizing agent weight and surplus.Be placed in process furnace by the zincizing processing vessel that cable suspension and support and zincizing agent are housed and heat up, heat-up rate controls at about per minute 8 DEG C, when temperature reaches 380 DEG C, keeps homo(io)thermism 1.8 hours, then stops heating.
(3) cooling process is carried out to the cable suspension and support after zincizing process: after heat diffusion treatment completes, less than 100 DEG C are cooled to process furnace Deng zincizing processing vessel, zincizing processing vessel is taken out from described process furnace, continue air cooling to room temperature, cable suspension and support is separated from zincizing agent.
(4) cable suspension and support aftertreatment: adopt the nitric acid of 15% to carry out chemical rightenning 25 seconds, so that the black oxide on removing member surface or remaining Zn powder, with water, acid is cleaned up immediately after polishing.
Experiment proves, the thickness of the cable suspension and support zincizing coating that the present embodiment obtains is 100 microns, zinc content average out to 75% in zinc coat.
Reference examples
Adopt with embodiment 1,2,3 identical step (1), step (3) and steps (4), with embodiment 1,2,3 unlike: do not add metallic silicon power in the zincizing agent that step (2) zincizing process adopts.
Experiment proves, the cable suspension and support zincizing coat-thickness that three reference examples obtain all is less than 60 microns, and in zinc coat, zinc powder average content is all lower than 65%.
Embodiment 4
The present embodiment obtains a kind of cable suspension and support and is prepared from by the zinc impregnation processing method of any one cable suspension and support in embodiment 1 to 3.
Cable suspension and support prepared by above-mentioned three kinds of embodiment zincing methods is arranged in Tianjin Underground tunnel and tests: to test after 2 years between cable and the gap of cable suspension and support without obvious rusty stain; And there is a large amount of corrosions in the cable suspension and support of the Hot Galvanizing Technology process adopted under identical operating mode; Although adopt the cable suspension and support surface of reference examples process without obvious rusty stain, between cable and the gap of cable suspension and support, there is red rust mark.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. a zinc impregnation processing method for cable suspension and support, is characterized in that: the method comprises the following steps:
(1) cable suspension and support surface treatment: oil removing, rust cleaning, washing and drying treatment are carried out to pending cable suspension and support surface;
(2) zincizing process: surface treated cable suspension and support is placed in the zincizing processing vessel loading zincizing agent, zincizing processing vessel is placed in process furnace, held for some time at a certain temperature, makes the zinc in zincizing agent be diffused into cable suspension and support surface and is formed containing zinc-iron alloy layer; Wherein, zincizing agent is that quartz sand is formulated by the zinc powder of weight ratio 30-40%, the metallic silicon power of zinc powder weight 2-10%, the activator of zincizing agent weight 0.3 ~ 0.5% and surplus;
(3) cooling process is carried out to the cable suspension and support after zincizing process: after zincizing process completes, zincizing processing vessel is cooled to less than 100 DEG C with process furnace, zincizing processing vessel is taken out from process furnace, continues air cooling to room temperature, cable suspension and support is separated from zincizing agent;
(4) aftertreatment of cable suspension and support: adopt the nitric acid of 15% to carry out chemical rightenning 10 ~ 25 seconds, with water, acid is cleaned up immediately after polishing; Passivation Treatment is carried out with chromic acid or chromatedsolution.
2. the zinc impregnation processing method of cable suspension and support according to claim 1, is characterized in that: only have the cable suspension and support of slight corrosion directly to carry out sandblasting or shot peening for surface in described step (1).
3. the zinc impregnation processing method of cable suspension and support according to claim 1, is characterized in that: in described step (2), the volume summation of cable suspension and support and zincizing agent is no more than 95% of zincizing processing vessel volume.
4. the zinc impregnation processing method of cable suspension and support according to claim 1, is characterized in that: in described step (2), activator is ammonium chloride.
5. the zinc impregnation processing method of cable suspension and support according to claim 1, is characterized in that: in described step (2), zinc powder particle size is 200-300 order, and metallic silicon power granularity is 120-200 order, and quartz sand size is 40-100 order.
6. the zinc impregnation processing method of cable suspension and support according to claim 1, it is characterized in that: in described step (2), process furnace heat-up rate controls at per minute 6-8 DEG C, when temperature reaches 300-380 DEG C, keep homo(io)thermism 1.5-2.0 hour, then stop heating; Wherein heat up and in insulating process, adopt the rotating speed of 5-20 rev/min to rotate zincizing processing vessel.
7. a cable suspension and support, is characterized in that: processed by the method described in claim 1-6 any one claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000440.8A CN105568214A (en) | 2015-12-25 | 2015-12-25 | Zinc impregnation processing method for cable support hanger and cable support hanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511000440.8A CN105568214A (en) | 2015-12-25 | 2015-12-25 | Zinc impregnation processing method for cable support hanger and cable support hanger |
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| CN105568214A true CN105568214A (en) | 2016-05-11 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3734203A1 (en) * | 1987-10-09 | 1989-04-20 | Solms Juergen | Process for hot galvanising steel articles having silicon contents above 0.02% |
| CN101503800A (en) * | 2009-03-12 | 2009-08-12 | 衡阳科诚电力成套设备实业有限公司 | Method for composite zinc impregnation for metal component surface |
| CN102168244A (en) * | 2011-03-25 | 2011-08-31 | 天津市先知邦渗锌防腐蚀金属制品有限公司 | Steel sleeper and zinc impregnation processing method thereof |
-
2015
- 2015-12-25 CN CN201511000440.8A patent/CN105568214A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3734203A1 (en) * | 1987-10-09 | 1989-04-20 | Solms Juergen | Process for hot galvanising steel articles having silicon contents above 0.02% |
| CN101503800A (en) * | 2009-03-12 | 2009-08-12 | 衡阳科诚电力成套设备实业有限公司 | Method for composite zinc impregnation for metal component surface |
| CN102168244A (en) * | 2011-03-25 | 2011-08-31 | 天津市先知邦渗锌防腐蚀金属制品有限公司 | Steel sleeper and zinc impregnation processing method thereof |
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